Age & Symptoms

Age

Chronic lymphocytic leukemia (CLL) is a slow-growing disease that develops over time and is most commonly diagnosed in older adults. The average age at diagnosis is around 70, and more than half of patients are 70 or older.

CLL is uncommon in individuals under age 50. Older patients may have a lower tolerance for certain treatments and a higher risk of complications. Encouragingly, newer targeted therapies are improving treatment options and tolerability for many patients.

Symptoms

Many people with CLL have few or no symptoms at diagnosis, and the disease is often discovered through routine blood tests. When symptoms do occur, they are often nonspecific and can vary from person to person.

Common symptoms include:

• Fatigue or low energy that interferes with daily activities
• Difficulty concentrating or “brain fog”
• Enlarged lymph nodes (neck, underarms, or groin)
• Fever, night sweats, or unexplained weight loss
• Frequent infections due to weakened immunity
• Shortness of breath (often related to anemia)
• Easy bruising or bleeding (due to low platelet counts)

Fatigue is one of the most frequently reported symptoms and can occur even in early stages of the disease. The exact cause is not fully understood and remains an area of active research.

Living with CLL

Many people live with CLL for years or even decades. While symptoms can impact daily life, work, and overall well-being, ongoing advances in research and treatment are helping patients maintain a better quality of life over time.